G02B 6/429
By surface irregularities on the light guide
Official title: {by surface irregularities on the light guide, e.g. by mechanical modification of the surface of the light guide on its exterior}
G02B6/429 (By surface irregularities on the light guide) appears on 39 US grants and 33 published applications in this corpus.
Search patents in G02B- Granted patents
- 39
- Published applications
- 33
- Assignees
- 43
- Inventors
- 84
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 2 | 5 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photodetection device and laser device26 Mar 2024US 11,940,321 B2Fujikura Ltd.
- Light detection device and laser device21 Jun 2022US 11,366,009 B2Fujikura Ltd.
- Optical communication system for rail-guided truck17 May 2022US 11,333,837 B2Keio University
- Leaky waveguide, spectroscopic method, and spectroscope including the leaky waveguide3 Nov 2020US 10,823,613 B2Samsung Electronics Co., Ltd.
- Optical components for wavelength division multiplexing with high-density optical interconnect modules11 Aug 2020US 10,739,518 B2International Business Machines Corporation
- Open rack node-to-node communication via a low-cost optical bus30 Apr 2026US 2026/0118592 A1Dell Products L. P.
- Clad light stripper with light traps17 Aug 2023US 2023/0258868 A1nLIGHT, Inc.
- Photodetection device and laser device17 Jun 2021US 2021/0181015 A1Fujikura Ltd.
- Light detection device and laser device17 Sep 2020US 2020/0292383 A1Fujikura Ltd.
- Optical communication system for rail-guided truck20 Aug 2020US 2020/0264389 A1Keio University
Most cited
By later US patents
- Integrated touch-sensing display apparatus and method of operating the same59US 8,860,696 B2FlatFrog Laboratories AB · 2014
- Integrated optical coupler and connector42US 4,881,789 AFinisar Corporation · 1989
- Directional optical waveguide couplers32US 4,019,051 ABell Telephone Laboratories, Incorporated · 1977
- Fiber cladding light stripper23US 8,537,871 B2nLight Photonics Corporation · 2013
- Single wavelength semiconductor laser with grating-assisted dielectric waveguide coupler21US 6,236,773 B1Texas Instruments Incorporated · 2001